Locomotive-furnace



(No Model.)

T. A. BUGKLAND.

LOCOMOTIVE FURNACE.

No. 246,071. Patented Aug. 23,1881,

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Unrrnn STATES PAT NT OFFICE.

THOMAS A. BUOKLAND, OF ST. LOUIS, MISSOURI.

LOCOMOTlVE-FURNACE.

SPECIFICATION forming part of Letters Patent No. 246,071, dated August 23, 1881.

Application filed January 31, 1881.

To all whom it may concern:

Be it known that I, THOMAS A. BUGKLAND, of St. Louis, Missouri, have made a new and useful Improvement in Locomotive-Furnaces, of which the following is a full, clear, and exact description, reference being had to the annexed drawings, making part of this specification, in which- Figure l is a vertical transverse section taken just inside the rear end plate of the furnace, the dotted lines indicating the position of the door; Fig. 2, atransverse section taken on the line arm of Fig. 3; Fig. 3, a central vertical longitudinal section. of the furnace; Fig.

4;, a top View of the furnace, the crown-plate being removed; Fig. 5, a view, in perspective, of the improved furnace, a portion of the outer wall being broken away to exhibit the interior; Figs. 6 and 7, respectively an end and a top view of the diaphragm; Figs. 8, 9, 10, respectively an end elevation, a plan, and a side elevation of one of the side tiles; Figs. 11, 12, respectively a plan and an elevation of the tiles at the forward end of the furnace; Figs. 13, 14, respectively a plan and an elevation, looking from the forward end of the furnace, of the'tile which rests upon the lower end of the diaphragm and against the side tiles; Fig. 15, a detail, being a sectional elevation, showing the end of one of the diaphragm-supporting tubes and the mode of inserting it in the furnace-wall; Fig. 16, an end elevation of the tube-thimble; and Figs. 17, 18, respectively a side and an end elevation of a tile that may be in conjunction with or in place of the tube in supporting the diaphragm.

The same letters denote the same parts.

The present invention is an improvement in systems of tilingfor the furnace-chamber of a locomotive.

The improvement relates to the peculiar mode of forming the throat of the system and the mode of combining and supporting the various tiles used in the system.

A'represents a locomotive-furnace having the improvement in question.

B B represent water-tubes arranged longitudinally in and respectively at each side of the chamber, and extending from or near the top of the rear end of the chamber, forward and downward toor near the bottom of the forward end of the chamber. These tubes support the following system of ti1ing: a diaphragm, 0, preferably in the form of two tiles,

(No model.)

0 c; an end tile, D, preferably in two parts, (1 cl; the side tiles, E E, and a cross-tile, F. The side tiles, E E, rest upon the tubes B B. The end tile, D, rests upon the tubes, but a crossir 0n, Gr, may be employed as an auxiliary support. The cross-tile F rests upon the lower end of the diaphragm G. The various tiles D, E E, and F are mitered togetheuas seen in Figs. 4, 5, to mutually support each other, and these last-named tiles are also curved and shaped upon their inner faces to form a conical construction, substantially as shown, in which the heat-currents, as they ascend after passing the lower end of the diaphragm, are concentrated and drawn close together, operating to consume the gases more thoroughly than if the flue H were made with perpendicular walls, and to more effectually hold back the air from escaping from beneath the diaphragm directly to the fines I.

By arranging the tubes B B as shown they offer less obstruction than if arranged transversely in the chamber. The tubes are fastened in the furnace-wall a, as shown in Fig. 15, the tubes being threaded, and a thimble, K, threaded upon the outer and inner sides, is screwed around the tube end into the wall a. The thimble Khas recesses k k in its end, by which, and by means of a suitable wrench, the thimble can be screwed into place.

In Figs. l7, 18 is shown a form of tile, L, which may be arranged at the sides of the furnace-chamber to support the diaphragm O, or to co-operate with the tubes B B in such sup port. The tiles L L rest upon the grate M.

I claim-- 1. The combination, in a locomotive-furnace, of the tiles E F D and diaphragm 0, constructed and arranged to form a narrowing throat, H,iu the manner shown and described.

2. The combination of the chamberA,tubes B B, diaphragm 0, end tile, D, side tiles, E E, and cross-tile F, substantially as described.

3. The combination of the combustion-chamber A and the tubes B B, the latter being fastened in the furnace-wall a by means of the thimble K, threaded both upon its outer and upon its inner sides, and screwed around the tube end into the wall a, substantially as described.

T. A. BUGKLAND.

Witnesses:

OnAs. D. MoonY, JOHN R. BENNETT. 

